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Thursday, June 28th, 2007

hug a tree (surgeon)

Solar electric production, 2004-2007These trees are kicking my ass. We just suffered the worst June ever, following the worst May ever. Our solar electricity production is about a day above last year’s at this time (1644 kWh vs 1634 kWh through June 21) but significantly under the two prior years: 1986 kWh by late June, 2004, is our record.

I noticed during my last trip up to the roof that the tall sycamore across the driveway from the house is now putting 1/3 of our array into shadow at 4:30PM. Needless to say, this nukes our generation for the rest of the afternoon, including 90 critical minutes of the utility’s “peak period.”

The tree in question has also enveloped all the cables coming into the house — data, telephone, and electric — so it has needed attention anyway. (High winds plus tree limbs equal extended power outages.) I’ve scheduled our tree surgeon for a visit next week.

The other problem we’re having is dirty air. I have washed the panels more often this year than any other, every 3 weeks on average, and they seem dirtier than ever before. I scrubbed them clean 11 days ago, and yet when I stand with my eyes just above the plane of the surface of the panels, they look completely opaque with dust. I wonder if more people are burning trash now than in previous years?

There is some good news: our electricity charges for 2007, despite production woes, will be lower than the prior two years. Last year’s fee was ~$160.

I mention the financial aspect to make clear that despite maintenance issues, the PV system on my roof will save me about $1000 in electricity costs this year.

Update 2007-10-18: It wasn’t the trees after all.


Tags: photovoltaic, solar, shading
posted to channel: Solar Blog
updated: 2007-10-19 06:15:31

Wednesday, June 27th, 2007

I can swing after all

So, I played a jazz gig a couple weeks ago. It was a stretch. Fortunately it wasn’t a pure swing set; that’s the sort of stretch that leaves permanent scarring.

My friend Oli, wizard of the Hammond organ, and local guitar pro Burjor Dastur had booked a show at the Ace. They’ve done a lot of gigs as a duet but were thinking the show would benefit from a third instrument, even one that tends to be loud and somewhat busy. Enter my great big acoustic kit. Well, I left the cowbell at home.

We rehearsed once, the day before. It was rough. The idea behind this particular trio is to take jazz standards and turn them into electric fusion songs. Hopefully without turning them into Jazz Odyssey. The challenge for me was that I’ve never heard, much less played, any of the jazz standards that served as the basis for our set list. In contrast, Oli and Burjor can play them forwards and backwards, in any key, in any time signature, and from the sound of it, frequently did so during our rehearsal.

During load-in, I noticed a big sign outside the pub announcing the line-up for the evening. For me this was a random pick-up gig, so when I saw a band called “CORE” listed to go on stage during our slot, my first reaction was “oh, cool; they found a real band to play tonight!” It hadn’t occurred to me that this random pick-up trio might have a name.

But the gig went really well. The other guys are smoking, and they’ve played together a couple hundred times, which is of course a big help. I played pretty well too.

Oli owes me a copy of his recording of the show. If I can find an excerpt that stands up to the cold harsh (not to mention sober) light of day, I’ll post a clip here.


Tags: jazz, swing, fusion
posted to channel: Music
updated: 2007-06-28 13:31:11

Monday, June 25th, 2007

CDs are finally getting cheap

I’ve been on a music binge lately, picking up over a dozen new releases over the past two months.

As an inveterate comparison shopper, I use the fact that I’m equidistant from any number of online music stores to my advantage, even if it sometimes means I spend 10 minutes saving $1. (It could be worse. In fact, it used to be.)

So I’ve noticed a surprising downward price pressure on CDs, even new releases. Not only does Amazon offer significant discounts on most new CDs, the same products show up on Half.com within days of release for even less money. Some examples:

Artist, TitleRelease DateList PriceAmazonHalf.com
Rush
Snakes and Arrows
2007-05-01$18.98$12.99$8.49
Chris Cornell
Carry On
2007-06-01$13.98$9.99$6.98
Dream Theater
Systematic Chaos
2006-06-05$18.98$12.97$6.95
Queens of the Stone Age
Era Vulgaris
2006-06-12$13.98$9.99$5.99

What would cause CD prices to drop below half of MSRP within a couple weeks of release?

We know that CD sales have been in decline since 2000 (or maybe earlier) — down 25% by 2005, at least another 14% in 2006, and at least another 20% this year, according to The CD Is Dead! (Long live the CD!)

Torrent search traffic is on the riseMeanwhile, digital music sales are way up — e.g. Apple is now the 3rd-largest music retailer in the US — and peer-to-peer filesharing is gaining popularity (despite being illegal).

Remember the CD price-fixing lawsuit of 2002? Here’s a great quote:

Former FTC chairman Robert Pitofsky said at the time that consumers had been overcharged by $480 million since 1997 and that CD prices would soon drop by as much as $5 a CD as a result.

Meanwhile, Barnes & Noble still charges $18.99 for Systematic Chaos.


Tags: itunes, cds, bittorrent
posted to channel: Music
updated: 2007-06-26 04:13:39

Sunday, June 24th, 2007

Lazarus confirms my assessment of the new CAFE standards

David Lazarus of the SF Chronicle agrees with my assessment of the recent CAFE mileage-standards revision in the Senate:

“This is a good day for American consumers and the environment, since we finally have gotten on the right path to better fuel economy,” said California Sen. Barbara Boxer.

Joan Claybrook, president of Public Citizen, saw things differently. “This is not a win, nor is it a step forward for fuel economy, consumers or the environment,” she said.

Claybrook was former administrator of the National Highway Traffic Safety Administration. Read more of her comments on the new CAFE standards.

There’s more of the Lazarus piece that’s worth reading:

Dave McCurdy, president of the Alliance of Automobile Manufacturers, an industry group, called the goals of HR6 [a more aggressive version of the bill that finally passed] “wildly extreme,” and said such ambitious fuel-efficiency standards “would eliminate some of the most popular vehicles on the road today and devastate both consumer choice and the auto industry.”

Probably not. What they’d do is compel Detroit to produce vehicles that reflect this nation’s increasingly precarious energy security and send a message to overseas oil producers that we no longer intend to dance to their tune.

Significantly higher fuel-efficiency requirements would also prompt engineers in Detroit and in universities nationwide to do what this country has always done better than all other countries — innovate.

In more positive news about reducing oil consumption, Google .org (the philanthropic arm of Google, Inc) has given $1 million in grants to promote use of plug-in hybrids. Here are the grant recipients.

Google.org has pledged another $10M to to fund development, adoption and commercialization of plug-ins, fully electric cars and related vehicle-to-grid (V2G) technology.


Tags: hybrid, mileage, google, cafe
posted to channel: Conservation
updated: 2007-06-24 16:45:17

Saturday, June 23rd, 2007

mystery fruit

It’s a fruit year. Every tree in the orchard set fruit this year — lemon, peach, apricot, apples, asian pear, persimmon, plum, fig, and whatever this thing is.

I was walking near the bottom of the property with Raphael. This is sort of a novelty because we just had the grass cut (using the term “grass” charitably here); for the first time in three months we can actually walk across the yard without a machete to hack our way through the overgrowth. At two and a half years, Raphael likely has no memory of what our back yard normally looks like.

At age 40, I don’t either. But then I don’t get out much.

Anyway we found three trees we’d never seen before. All three are covered in small yellow-orange fruit. We don’t know what it is.

If you recognize it, let me know. Maybe I’ll send you a pie.

Update 2007-07-05: We figured it out.


Tags: fruit, orchard, mystery
posted to channel: Personal
updated: 2007-07-05 18:27:36

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Carbon neutral for 2007.